The HMC657LP2 from Analog Devices is a Fixed Attenuator with Frequency DC to 25 GHz, Attenuation 15 dB, Power 0.31 W, 24.91 dBm, Attenuation Accuracy ±2 dB, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount. More details for HMC657LP2 can be seen below.